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<div class="title">qwt_plot_rasteritem.cpp</div>  </div>
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<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 1997   Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;qwt_plot_rasteritem.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &quot;qwt_scale_map.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &quot;qwt_painter.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &quot;qwt_text.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &quot;qwt_interval.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &quot;qwt_math.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160; </div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;qpainter.h&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;qpaintengine.h&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;qthread.h&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;qfuture.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;qtconcurrentrun.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;limits&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160; </div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="keyword">class </span>QwtPlotRasterItem::PrivateData</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;{</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    PrivateData()</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        : <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">alpha</a>( -1 )</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;        , paintAttributes( <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a>::<a class="code" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394eea77b139d4d7327465408fe06ec98dbc0d">PaintInDeviceResolution</a> )</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    {</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;        cache.policy = <a class="code" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0a758ccf247c4ae50d4ffd090ef3a6058e">QwtPlotRasterItem::NoCache</a>;</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    }</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">alpha</a>;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <a class="code" href="class_qwt_plot_raster_item.html#a71cc9ee02852dac4e5cf418e37563c9d">QwtPlotRasterItem::PaintAttributes</a> paintAttributes;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    <span class="keyword">struct </span>ImageCache</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    {</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;        <a class="code" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">QwtPlotRasterItem::CachePolicy</a> policy;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;        QRectF area;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;        QSizeF size;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;        QImage image;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    } cache;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;};</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160; </div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="keyword">static</span> QRectF qwtAlignRect(<span class="keyword">const</span> QRectF&amp; rect)</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;{</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    QRectF r;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    r.setLeft( qRound( rect.left() ) );</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    r.setRight( qRound( rect.right() ) );</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    r.setTop( qRound( rect.top() ) );</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    r.setBottom( qRound( rect.bottom() ) );</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160; </div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <span class="keywordflow">return</span> r;</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;}</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="keyword">static</span> QRectF qwtStripRect(<span class="keyword">const</span> QRectF&amp; rect, <span class="keyword">const</span> QRectF&amp; area,</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>&amp; xInterval, <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>&amp; yInterval)</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;{</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    QRectF r = rect;</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="keywordflow">if</span> ( xInterval.<a class="code" href="class_qwt_interval.html#ac7378d58eb684a9befde1cb6d6e88b45">borderFlags</a>() &amp; <a class="code" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54aa7fde04c41d882187bb13f0104da7240">QwtInterval::ExcludeMinimum</a> )</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    {</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        <span class="keywordflow">if</span> ( area.left() &lt;= xInterval.<a class="code" href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">minValue</a>() )</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        {</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;            <span class="keywordflow">if</span> ( xMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() )</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;                r.adjust(0, 0, -1, 0);</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;                r.adjust(1, 0, 0, 0);</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        }</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    }</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160; </div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <span class="keywordflow">if</span> ( xInterval.<a class="code" href="class_qwt_interval.html#ac7378d58eb684a9befde1cb6d6e88b45">borderFlags</a>() &amp; <a class="code" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54a70e70e65956ae319e507bc38b792c434">QwtInterval::ExcludeMaximum</a> )</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    {</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;        <span class="keywordflow">if</span> ( area.right() &gt;= xInterval.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>() )</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        {</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;            <span class="keywordflow">if</span> ( xMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() )</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                r.adjust(1, 0, 0, 0);</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;                r.adjust(0, 0, -1, 0);</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        }</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    }</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <span class="keywordflow">if</span> ( yInterval.<a class="code" href="class_qwt_interval.html#ac7378d58eb684a9befde1cb6d6e88b45">borderFlags</a>() &amp; <a class="code" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54aa7fde04c41d882187bb13f0104da7240">QwtInterval::ExcludeMinimum</a> )</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    {</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        <span class="keywordflow">if</span> ( area.top() &lt;= yInterval.<a class="code" href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">minValue</a>() )</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        {</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;            <span class="keywordflow">if</span> ( yMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() )</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;                r.adjust(0, 0, 0, -1);</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;                r.adjust(0, 1, 0, 0);</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;        }</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    }</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <span class="keywordflow">if</span> ( yInterval.<a class="code" href="class_qwt_interval.html#ac7378d58eb684a9befde1cb6d6e88b45">borderFlags</a>() &amp; <a class="code" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54a70e70e65956ae319e507bc38b792c434">QwtInterval::ExcludeMaximum</a> )</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    {</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        <span class="keywordflow">if</span> ( area.bottom() &gt;= yInterval.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>() )</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;        {</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;            <span class="keywordflow">if</span> ( yMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() )</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;                r.adjust(0, 1, 0, 0);</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;                r.adjust(0, 0, 0, -1);</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        }</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    }</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160; </div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    <span class="keywordflow">return</span> r;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;}</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160; </div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="keyword">static</span> QImage qwtExpandImage(<span class="keyword">const</span> QImage&amp; image,</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    <span class="keyword">const</span> QRectF&amp; area, <span class="keyword">const</span> QRectF&amp; area2, <span class="keyword">const</span> QRectF&amp; paintRect,</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>&amp; xInterval, <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>&amp; yInterval )</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;{</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    <span class="keyword">const</span> QRectF strippedRect = qwtStripRect(paintRect, area2,</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        xMap, yMap, xInterval, yInterval);</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <span class="keyword">const</span> QSize sz = strippedRect.toRect().size();</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160; </div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> w = image.width();</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> h = image.height();</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160; </div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <span class="keyword">const</span> QRectF r = <a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">QwtScaleMap::transform</a>(xMap, yMap, area).normalized();</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> pw = ( r.width() - 1 ) / w;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> ph = ( r.height() - 1 ) / h;</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160; </div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="keywordtype">double</span> px0, py0;</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    <span class="keywordflow">if</span> ( !xMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() )</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    {</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        px0 = xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( area2.left() );</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        px0 = qRound( px0 );</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;        px0 = px0 - xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( area.left() );</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    }</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    {</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;        px0 = xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( area2.right() );</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        px0 = qRound( px0 );</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;        px0 -= xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( area.right() );</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160; </div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;        px0 -= 1.0;</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    }</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    px0 += strippedRect.left() - paintRect.left();</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160; </div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <span class="keywordflow">if</span> ( !yMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() )</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    {</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        py0 = yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( area2.top() );</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        py0 = qRound( py0 );</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;        py0 -= yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( area.top() );</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    }</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    {</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        py0 = yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( area2.bottom() );</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        py0 = qRound( py0 );</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;        py0 -= yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( area.bottom() );</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160; </div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;        py0 -= 1.0;</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    }</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    py0 += strippedRect.top() - paintRect.top();</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160; </div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    QImage expanded( sz, image.format() );</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    <span class="keywordflow">if</span> ( image.format() == QImage::Format_Indexed8 )</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;        expanded.setColorTable( image.colorTable() );</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160; </div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    <span class="keywordflow">switch</span>( image.depth() )</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    {</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;        <span class="keywordflow">case</span> 32:</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;        {</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y1 = 0; y1 &lt; h; y1++ )</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;            {</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;                <span class="keywordtype">int</span> yy1;</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;                <span class="keywordflow">if</span> ( y1 == 0 )</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;                {</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;                    yy1 = 0;</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;                }</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                {</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;                    yy1 = qRound( y1 * ph - py0 );</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;                    <span class="keywordflow">if</span> ( yy1 &lt; 0 )</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;                        yy1 = 0;</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;                }</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160; </div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;                <span class="keywordtype">int</span> yy2;</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;                <span class="keywordflow">if</span> ( y1 == h - 1 )</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;                {</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;                    yy2 = sz.height();</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;                }</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;                {</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;                    yy2 = qRound( ( y1 + 1 ) * ph - py0 );</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;                    <span class="keywordflow">if</span> ( yy2 &gt; sz.height() )</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;                        yy2 = sz.height();</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;                }</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160; </div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;                <span class="keyword">const</span> quint32* line1 =</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;                    <span class="keyword">reinterpret_cast&lt;</span> <span class="keyword">const </span>quint32* <span class="keyword">&gt;</span>( image.scanLine( y1 ) );</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160; </div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;                <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x1 = 0; x1 &lt; w; x1++ )</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;                {</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;                    <span class="keywordtype">int</span> xx1;</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;                    <span class="keywordflow">if</span> ( x1 == 0 )</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;                    {</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;                        xx1 = 0;</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;                    }</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;                    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;                    {</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;                        xx1 = qRound( x1 * pw - px0 );</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;                        <span class="keywordflow">if</span> ( xx1 &lt; 0 )</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;                            xx1 = 0;</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;                    }</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160; </div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;                    <span class="keywordtype">int</span> xx2;</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;                    <span class="keywordflow">if</span> ( x1 == w - 1 )</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;                    {</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;                        xx2 = sz.width();</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;                    }</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;                    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;                    {</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;                        xx2 = qRound( ( x1 + 1 ) * pw - px0 );</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;                        <span class="keywordflow">if</span> ( xx2 &gt; sz.width() )</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;                            xx2 = sz.width();</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;                    }</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160; </div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;                    <span class="keyword">const</span> quint32 rgb( line1[x1] );</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;                    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y2 = yy1; y2 &lt; yy2; y2++ )</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;                    {</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;                        quint32* line2 = <span class="keyword">reinterpret_cast&lt;</span> quint32* <span class="keyword">&gt;</span>(</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;                            expanded.scanLine( y2 ) );</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160; </div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;                        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x2 = xx1; x2 &lt; xx2; x2++ )</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;                            line2[x2] = rgb;</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;                    }</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;                }</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;            }</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;        }</div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;        <span class="keywordflow">case</span> 8:</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;        {</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y1 = 0; y1 &lt; h; y1++ )</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;            {</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;                <span class="keywordtype">int</span> yy1;</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;                <span class="keywordflow">if</span> ( y1 == 0 )</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;                {</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;                    yy1 = 0;</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;                }</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;                {</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;                    yy1 = qRound( y1 * ph - py0 );</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;                    <span class="keywordflow">if</span> ( yy1 &lt; 0 )</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;                        yy1 = 0;</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;                }</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160; </div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;                <span class="keywordtype">int</span> yy2;</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;                <span class="keywordflow">if</span> ( y1 == h - 1 )</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;                {</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;                    yy2 = sz.height();</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;                }</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;                {</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;                    yy2 = qRound( ( y1 + 1 ) * ph - py0 );</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;                    <span class="keywordflow">if</span> ( yy2 &gt; sz.height() )</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;                        yy2 = sz.height();</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;                }</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160; </div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;                <span class="keyword">const</span> uchar* line1 = image.scanLine( y1 );</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160; </div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;                <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x1 = 0; x1 &lt; w; x1++ )</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;                {</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;                    <span class="keywordtype">int</span> xx1;</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;                    <span class="keywordflow">if</span> ( x1 == 0 )</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;                    {</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;                        xx1 = 0;</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;                    }</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;                    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;                    {</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;                        xx1 = qRound( x1 * pw - px0 );</div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;                        <span class="keywordflow">if</span> ( xx1 &lt; 0 )</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;                            xx1 = 0;</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;                    }</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160; </div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;                    <span class="keywordtype">int</span> xx2;</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;                    <span class="keywordflow">if</span> ( x1 == w - 1 )</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;                    {</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;                        xx2 = sz.width();</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;                    }</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;                    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;                    {</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;                        xx2 = qRound( ( x1 + 1 ) * pw - px0 );</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;                        <span class="keywordflow">if</span> ( xx2 &gt; sz.width() )</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;                            xx2 = sz.width();</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;                    }</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160; </div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;                    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y2 = yy1; y2 &lt; yy2; y2++ )</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;                    {</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;                        uchar* line2 = expanded.scanLine( y2 );</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;                        memset( line2 + xx1, line1[x1], xx2 - xx1 );</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;                    }</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;                }</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;            }</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;        }</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;        <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;            expanded = image;</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;    }</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160; </div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    <span class="keywordflow">return</span> expanded;</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;}</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160; </div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;<span class="keyword">static</span> QRectF qwtExpandToPixels(<span class="keyword">const</span> QRectF&amp; rect, <span class="keyword">const</span> QRectF&amp; pixelRect)</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;{</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> pw = pixelRect.width();</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> ph = pixelRect.height();</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160; </div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> dx1 = pixelRect.left() - rect.left();</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> dx2 = pixelRect.right() - rect.right();</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> dy1 = pixelRect.top() - rect.top();</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> dy2 = pixelRect.bottom() - rect.bottom();</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160; </div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;    QRectF r;</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    r.setLeft( pixelRect.left() - qwtCeil( dx1 / pw ) * pw );</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;    r.setTop( pixelRect.top() - qwtCeil( dy1 / ph ) * ph );</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;    r.setRight( pixelRect.right() - qwtFloor( dx2 / pw ) * pw );</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;    r.setBottom( pixelRect.bottom() - qwtFloor( dy2 / ph ) * ph );</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160; </div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;    <span class="keywordflow">return</span> r;</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;}</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160; </div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> qwtTransformMaps( <span class="keyword">const</span> QTransform&amp; tr,</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;    <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xxMap, <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yyMap )</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;{</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;    <span class="keyword">const</span> QPointF p1 = tr.map( QPointF( xMap.<a class="code" href="class_qwt_scale_map.html#a4d03a9fea3bd9b66a0b882b8b1a58f4b">p1</a>(), yMap.<a class="code" href="class_qwt_scale_map.html#a4d03a9fea3bd9b66a0b882b8b1a58f4b">p1</a>() ) );</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;    <span class="keyword">const</span> QPointF p2 = tr.map( QPointF( xMap.<a class="code" href="class_qwt_scale_map.html#acd78b70fae83854a148fa3d08b13c261">p2</a>(), yMap.<a class="code" href="class_qwt_scale_map.html#acd78b70fae83854a148fa3d08b13c261">p2</a>() ) );</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160; </div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;    xxMap = xMap;</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;    xxMap.<a class="code" href="class_qwt_scale_map.html#a994240e446986112f196a65657dc9755">setPaintInterval</a>( p1.x(), p2.x() );</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160; </div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;    yyMap = yMap;</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;    yyMap.<a class="code" href="class_qwt_scale_map.html#a994240e446986112f196a65657dc9755">setPaintInterval</a>( p1.y(), p2.y() );</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;}</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160; </div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> qwtAdjustMaps( <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;    <span class="keyword">const</span> QRectF&amp; area, <span class="keyword">const</span> QRectF&amp; paintRect)</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;{</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;    <span class="keywordtype">double</span> sx1 = area.left();</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;    <span class="keywordtype">double</span> sx2 = area.right();</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;    <span class="keywordflow">if</span> ( xMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() )</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;        qSwap(sx1, sx2);</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160; </div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;    <span class="keywordtype">double</span> sy1 = area.top();</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;    <span class="keywordtype">double</span> sy2 = area.bottom();</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160; </div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;    <span class="keywordflow">if</span> ( yMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() )</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;        qSwap(sy1, sy2);</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160; </div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;    xMap.<a class="code" href="class_qwt_scale_map.html#a994240e446986112f196a65657dc9755">setPaintInterval</a>(paintRect.left(), paintRect.right() );</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;    xMap.<a class="code" href="class_qwt_scale_map.html#aaa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>(sx1, sx2);</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160; </div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;    yMap.<a class="code" href="class_qwt_scale_map.html#a994240e446986112f196a65657dc9755">setPaintInterval</a>(paintRect.top(), paintRect.bottom() );</div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;    yMap.<a class="code" href="class_qwt_scale_map.html#aaa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>(sy1, sy2);</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;}</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160; </div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;<span class="keyword">static</span> <span class="keywordtype">bool</span> qwtUseCache( <a class="code" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">QwtPlotRasterItem::CachePolicy</a> policy,</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;    <span class="keyword">const</span> QPainter* painter )</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;{</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;    <span class="keywordtype">bool</span> doCache = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160; </div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;    <span class="keywordflow">if</span> ( policy == <a class="code" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0a3bfb74bebbfe1ccabe1d6654fee7c56d">QwtPlotRasterItem::PaintCache</a> )</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;    {</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;        <span class="comment">// Caching doesn&#39;t make sense, when the item is</span></div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;        <span class="comment">// not painted to screen</span></div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160; </div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;        <span class="keywordflow">switch</span> ( painter-&gt;paintEngine()-&gt;type() )</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;        {</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;            <span class="keywordflow">case</span> QPaintEngine::SVG:</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;            <span class="keywordflow">case</span> QPaintEngine::Pdf:</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;<span class="preprocessor">#if QT_VERSION &lt; 0x060000</span></div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;            <span class="keywordflow">case</span> QPaintEngine::PostScript:</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;            <span class="keywordflow">case</span> QPaintEngine::MacPrinter:</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;            <span class="keywordflow">case</span> QPaintEngine::Picture:</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;            <span class="keywordflow">default</span>:;</div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;                doCache = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;        }</div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;    }</div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160; </div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;    <span class="keywordflow">return</span> doCache;</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;}</div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160; </div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> qwtToRgba( <span class="keyword">const</span> QImage* from, QImage* to,</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;    <span class="keyword">const</span> QRect&amp; tile, <span class="keywordtype">int</span> alpha )</div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;{</div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;    <span class="keyword">const</span> QRgb mask1 = qRgba( 0, 0, 0, alpha );</div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;    <span class="keyword">const</span> QRgb mask2 = qRgba( 255, 255, 255, 0 );</div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;    <span class="keyword">const</span> QRgb mask3 = qRgba( 0, 0, 0, 255 );</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160; </div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> y0 = tile.top();</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> y1 = tile.bottom();</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> x0 = tile.left();</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> x1 = tile.right();</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160; </div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;    <span class="keywordflow">if</span> ( from-&gt;depth() == 8 )</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;    {</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y = y0; y &lt;= y1; y++ )</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;        {</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;            QRgb* alphaLine = <span class="keyword">reinterpret_cast&lt;</span> QRgb* <span class="keyword">&gt;</span>( to-&gt;scanLine( y ) );</div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* line = from-&gt;scanLine( y );</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160; </div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x = x0; x &lt;= x1; x++ )</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;                *alphaLine++ = ( from-&gt;color( *line++ ) &amp; mask2 ) | mask1;</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;        }</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;    }</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( from-&gt;depth() == 32 )</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;    {</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y = y0; y &lt;= y1; y++ )</div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;        {</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;            QRgb* alphaLine = <span class="keyword">reinterpret_cast&lt;</span> QRgb* <span class="keyword">&gt;</span>( to-&gt;scanLine( y ) );</div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;            <span class="keyword">const</span> QRgb* line = <span class="keyword">reinterpret_cast&lt;</span> <span class="keyword">const </span>QRgb* <span class="keyword">&gt;</span>( from-&gt;scanLine( y ) );</div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160; </div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x = x0; x &lt;= x1; x++ )</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;            {</div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;                <span class="keyword">const</span> QRgb rgb = *line++;</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;                <span class="keywordflow">if</span> ( rgb &amp; mask3 ) <span class="comment">// alpha != 0</span></div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;                    *alphaLine++ = ( rgb &amp; mask2 ) | mask1;</div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;                    *alphaLine++ = rgb;</div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;            }</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;        }</div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;    }</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;}</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160; </div>
<div class="line"><a name="l00434"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#ac537e137ad0d594a3276b0f76202a626">  434</a></span>&#160;<a class="code" href="class_qwt_plot_raster_item.html#ac537e137ad0d594a3276b0f76202a626">QwtPlotRasterItem::QwtPlotRasterItem</a>( <span class="keyword">const</span> QString&amp; title )</div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;    : <a class="code" href="class_qwt_plot_item.html">QwtPlotItem</a>( <a class="code" href="class_qwt_text.html">QwtText</a>( title ) )</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;{</div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;    init();</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;}</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160; </div>
<div class="line"><a name="l00441"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#af487c6abc8e95200d4537d1373f96be5">  441</a></span>&#160;<a class="code" href="class_qwt_plot_raster_item.html#ac537e137ad0d594a3276b0f76202a626">QwtPlotRasterItem::QwtPlotRasterItem</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a>&amp; title )</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;    : <a class="code" href="class_qwt_plot_item.html">QwtPlotItem</a>( title )</div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;{</div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;    init();</div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;}</div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160; </div>
<div class="line"><a name="l00448"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a2715233827c346ab15504dc75d6e9714">  448</a></span>&#160;<a class="code" href="class_qwt_plot_raster_item.html#a2715233827c346ab15504dc75d6e9714">QwtPlotRasterItem::~QwtPlotRasterItem</a>()</div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;{</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;    <span class="keyword">delete</span> m_data;</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;}</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160; </div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;<span class="keywordtype">void</span> QwtPlotRasterItem::init()</div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;{</div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;    m_data = <span class="keyword">new</span> PrivateData();</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160; </div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;    <a class="code" href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>( <a class="code" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48">QwtPlotItem::AutoScale</a>, <span class="keyword">true</span> );</div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;    <a class="code" href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>( <a class="code" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176">QwtPlotItem::Legend</a>, <span class="keyword">false</span> );</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160; </div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;    <a class="code" href="class_qwt_plot_item.html#a57d90e4146133b59d589c71b3a643e82">setZ</a>( 8.0 );</div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;}</div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160; </div>
<div class="line"><a name="l00470"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a70d6b94821e5eafb29b1f045d1f3a2e6">  470</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_raster_item.html#a70d6b94821e5eafb29b1f045d1f3a2e6">QwtPlotRasterItem::setPaintAttribute</a>( <a class="code" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a> attribute, <span class="keywordtype">bool</span> on )</div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;{</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;    <span class="keywordflow">if</span> ( on )</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;        m_data-&gt;paintAttributes |= attribute;</div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;        m_data-&gt;paintAttributes &amp;= ~attribute;</div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;}</div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160; </div>
<div class="line"><a name="l00482"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a0244b24502abe26185b70b7ee6a4905c">  482</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_raster_item.html#a0244b24502abe26185b70b7ee6a4905c">QwtPlotRasterItem::testPaintAttribute</a>( <a class="code" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a> attribute )<span class="keyword"> const</span></div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;    <span class="keywordflow">return</span> ( m_data-&gt;paintAttributes &amp; attribute );</div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;}</div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160; </div>
<div class="line"><a name="l00510"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a14f2ab8ec0994384e6269f869c352273">  510</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_raster_item.html#a14f2ab8ec0994384e6269f869c352273">QwtPlotRasterItem::setAlpha</a>( <span class="keywordtype">int</span> alpha )</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;{</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">alpha</a> &lt; 0 )</div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;        <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">alpha</a> = -1;</div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160; </div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">alpha</a> &gt; 255 )</div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;        <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">alpha</a> = 255;</div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160; </div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">alpha</a> != m_data-&gt;alpha )</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;    {</div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;        m_data-&gt;alpha = <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">alpha</a>;</div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160; </div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;    }</div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;}</div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160; </div>
<div class="line"><a name="l00530"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">  530</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">QwtPlotRasterItem::alpha</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;alpha;</div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;}</div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160; </div>
<div class="line"><a name="l00543"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a31f74199f7e333c2683b0f18289e4c7f">  543</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_raster_item.html#a31f74199f7e333c2683b0f18289e4c7f">QwtPlotRasterItem::setCachePolicy</a>(</div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;    <a class="code" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">QwtPlotRasterItem::CachePolicy</a> policy )</div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;{</div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;cache.policy != policy )</div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;    {</div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;        m_data-&gt;cache.policy = policy;</div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160; </div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;        <a class="code" href="class_qwt_plot_raster_item.html#a547ce4d8d031b230226cfbd509ef65b5">invalidateCache</a>();</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;    }</div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;}</div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160; </div>
<div class="line"><a name="l00559"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#aec74de65bf6b566afd52db6dc4c67c46">  559</a></span>&#160;<a class="code" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">QwtPlotRasterItem::CachePolicy</a> <a class="code" href="class_qwt_plot_raster_item.html#aec74de65bf6b566afd52db6dc4c67c46">QwtPlotRasterItem::cachePolicy</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00561"></a><span class="lineno">  561</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;cache.policy;</div>
<div class="line"><a name="l00562"></a><span class="lineno">  562</span>&#160;}</div>
<div class="line"><a name="l00563"></a><span class="lineno">  563</span>&#160; </div>
<div class="line"><a name="l00568"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a547ce4d8d031b230226cfbd509ef65b5">  568</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_raster_item.html#a547ce4d8d031b230226cfbd509ef65b5">QwtPlotRasterItem::invalidateCache</a>()</div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;{</div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;    m_data-&gt;cache.image = QImage();</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;    m_data-&gt;cache.area = QRect();</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;    m_data-&gt;cache.size = QSize();</div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;}</div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160; </div>
<div class="line"><a name="l00601"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a879bb4bc04be084022e9cc5abab748f3">  601</a></span>&#160;QRectF <a class="code" href="class_qwt_plot_raster_item.html#a879bb4bc04be084022e9cc5abab748f3">QwtPlotRasterItem::pixelHint</a>( <span class="keyword">const</span> QRectF&amp; area )<span class="keyword"> const</span></div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;    Q_UNUSED( area );</div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;    <span class="keywordflow">return</span> QRectF();</div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;}</div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160; </div>
<div class="line"><a name="l00614"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a0d93dc1cd50a43bc10bc1b1bfd457a4c">  614</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_raster_item.html#a0d93dc1cd50a43bc10bc1b1bfd457a4c">QwtPlotRasterItem::draw</a>( QPainter* painter,</div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;    <span class="keyword">const</span> QRectF&amp; canvasRect )<span class="keyword"> const</span></div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;    <span class="keywordflow">if</span> ( canvasRect.isEmpty() || m_data-&gt;alpha == 0 )</div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160; </div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">bool</span> doCache = qwtUseCache( m_data-&gt;cache.policy, painter );</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160; </div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> xInterval = <a class="code" href="class_qwt_plot_raster_item.html#ae89258a78b262ccaad43c4a2d5f7b5b4">interval</a>( Qt::XAxis );</div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> yInterval = <a class="code" href="class_qwt_plot_raster_item.html#ae89258a78b262ccaad43c4a2d5f7b5b4">interval</a>( Qt::YAxis );</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160; </div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160;<span class="comment">        Scaling an image always results in a loss of</span></div>
<div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;<span class="comment">        precision/quality. So we always render the image in</span></div>
<div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;<span class="comment">        paint device resolution.</span></div>
<div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160; </div>
<div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;    <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> xxMap, yyMap;</div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;    qwtTransformMaps( painter-&gt;transform(), xMap, yMap, xxMap, yyMap );</div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160; </div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;    QRectF <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a> = painter-&gt;transform().mapRect( canvasRect );</div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;    QRectF area = <a class="code" href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642">QwtScaleMap::invTransform</a>( xxMap, yyMap, <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a> );</div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160; </div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;    <span class="keyword">const</span> QRectF br = <a class="code" href="class_qwt_plot_raster_item.html#a0da9b86321855e580d0e21d2939d5391">boundingRect</a>();</div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;    <span class="keywordflow">if</span> ( br.isValid() &amp;&amp; !br.contains( area ) )</div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;    {</div>
<div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;        area &amp;= br;</div>
<div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;        <span class="keywordflow">if</span> ( !area.isValid() )</div>
<div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160; </div>
<div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;        <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a> = <a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">QwtScaleMap::transform</a>( xxMap, yyMap, area );</div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;    }</div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160; </div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;    QRectF imageRect;</div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;    QImage image;</div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160; </div>
<div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;    QRectF pixelRect = <a class="code" href="class_qwt_plot_raster_item.html#a879bb4bc04be084022e9cc5abab748f3">pixelHint</a>(area);</div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;    <span class="keywordflow">if</span> ( !pixelRect.isEmpty() )</div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;    {</div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;        <span class="comment">// one pixel of the target device in plot coordinates</span></div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">double</span> dx = qAbs( xxMap.<a class="code" href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642">invTransform</a>( 1 ) - xxMap.<a class="code" href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642">invTransform</a>( 0 ) );</div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">double</span> dy = qAbs( yyMap.<a class="code" href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642">invTransform</a>( 1 ) - yyMap.<a class="code" href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642">invTransform</a>( 0 ) );</div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160; </div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;        <span class="keywordflow">if</span> ( dx &gt; pixelRect.width() &amp;&amp; dy &gt; pixelRect.height() )</div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;        {</div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;<span class="comment">               When the resolution of the data pixels is higher than</span></div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;<span class="comment">               the resolution of the target device we render in</span></div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;<span class="comment">               target device resolution.</span></div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;            pixelRect = QRectF();</div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;        }</div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;        {</div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;<span class="comment">               If only one dimension is of the data pixel is higher</span></div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;<span class="comment">               we expand the pixel rect to the resolution of the target device.</span></div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160; </div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;            <span class="keywordflow">if</span> ( dx &gt; pixelRect.width() )</div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;                pixelRect.setWidth( dx );</div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160; </div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;            <span class="keywordflow">if</span> ( dy &gt; pixelRect.height() )</div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;                pixelRect.setHeight( dy );</div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;        }</div>
<div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;    }</div>
<div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160; </div>
<div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;    <span class="keywordflow">if</span> ( pixelRect.isEmpty() )</div>
<div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;    {</div>
<div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;        <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_painter.html#ae9af230df7bb8d40b802d4f3205a8631">QwtPainter::roundingAlignment</a>( painter ) )</div>
<div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;        {</div>
<div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;            <span class="comment">// we want to have maps, where the boundaries of</span></div>
<div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;            <span class="comment">// the aligned paint rectangle exactly match the area</span></div>
<div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160; </div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;            <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a> = qwtAlignRect(<a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>);</div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;            qwtAdjustMaps(xxMap, yyMap, area, <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>);</div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;        }</div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160; </div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;        <span class="comment">// When we have no information about position and size of</span></div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;        <span class="comment">// data pixels we render in resolution of the paint device.</span></div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160; </div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;        image = compose(xxMap, yyMap,</div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;            area, <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>, <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>.size().toSize(), doCache);</div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;        <span class="keywordflow">if</span> ( image.isNull() )</div>
<div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160; </div>
<div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;        <span class="comment">// Remove pixels at the boundaries, when explicitly</span></div>
<div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;        <span class="comment">// excluded in the intervals</span></div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160; </div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;        imageRect = qwtStripRect(<a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>, area,</div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;            xxMap, yyMap, xInterval, yInterval);</div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160; </div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;        <span class="keywordflow">if</span> ( imageRect != <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a> )</div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;        {</div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;            <span class="keyword">const</span> QRect r(</div>
<div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;                qRound( imageRect.x() - <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>.x() ),</div>
<div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;                qRound( imageRect.y() - <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>.y() ),</div>
<div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;                qRound( imageRect.width() ),</div>
<div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;                qRound( imageRect.height() ) );</div>
<div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160; </div>
<div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;            image = image.copy(r);</div>
<div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;        }</div>
<div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;    }</div>
<div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;    {</div>
<div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;        <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_painter.html#ae9af230df7bb8d40b802d4f3205a8631">QwtPainter::roundingAlignment</a>( painter ) )</div>
<div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;            <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a> = qwtAlignRect(<a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>);</div>
<div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160; </div>
<div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;        <span class="comment">// align the area to the data pixels</span></div>
<div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;        QRectF imageArea = qwtExpandToPixels(area, pixelRect);</div>
<div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160; </div>
<div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;        <span class="keywordflow">if</span> ( imageArea.right() == xInterval.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>() &amp;&amp;</div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;            !( xInterval.<a class="code" href="class_qwt_interval.html#ac7378d58eb684a9befde1cb6d6e88b45">borderFlags</a>() &amp; <a class="code" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54a70e70e65956ae319e507bc38b792c434">QwtInterval::ExcludeMaximum</a> ) )</div>
<div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;        {</div>
<div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;            imageArea.adjust(0, 0, pixelRect.width(), 0);</div>
<div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;        }</div>
<div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;        <span class="keywordflow">if</span> ( imageArea.bottom() == yInterval.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>() &amp;&amp;</div>
<div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;            !( yInterval.<a class="code" href="class_qwt_interval.html#ac7378d58eb684a9befde1cb6d6e88b45">borderFlags</a>() &amp; <a class="code" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54a70e70e65956ae319e507bc38b792c434">QwtInterval::ExcludeMaximum</a> ) )</div>
<div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;        {</div>
<div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;            imageArea.adjust(0, 0, 0, pixelRect.height() );</div>
<div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;        }</div>
<div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160; </div>
<div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;        QSize imageSize;</div>
<div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160;        imageSize.setWidth( qRound( imageArea.width() / pixelRect.width() ) );</div>
<div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160;        imageSize.setHeight( qRound( imageArea.height() / pixelRect.height() ) );</div>
<div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160; </div>
<div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160;        image = compose(xxMap, yyMap,</div>
<div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160;            imageArea, <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>, imageSize, doCache );</div>
<div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160; </div>
<div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;        <span class="keywordflow">if</span> ( image.isNull() )</div>
<div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160; </div>
<div class="line"><a name="l00747"></a><span class="lineno">  747</span>&#160;        imageRect = qwtStripRect(<a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>, area,</div>
<div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;            xxMap, yyMap, xInterval, yInterval);</div>
<div class="line"><a name="l00749"></a><span class="lineno">  749</span>&#160; </div>
<div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;        <span class="keywordflow">if</span> ( ( image.width() &gt; 1 || image.height() &gt; 1 ) &amp;&amp;</div>
<div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;            <a class="code" href="class_qwt_plot_raster_item.html#a0244b24502abe26185b70b7ee6a4905c">testPaintAttribute</a>( <a class="code" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394eea77b139d4d7327465408fe06ec98dbc0d">PaintInDeviceResolution</a> ) )</div>
<div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160;        {</div>
<div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;            <span class="comment">// Because of rounding errors the pixels</span></div>
<div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;            <span class="comment">// need to be expanded manually to rectangles of</span></div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;            <span class="comment">// different sizes</span></div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160; </div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;            image = qwtExpandImage(image, xxMap, yyMap,</div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160;                imageArea, area, <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>, xInterval, yInterval );</div>
<div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160;        }</div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;    }</div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160; </div>
<div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;    painter-&gt;save();</div>
<div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;    painter-&gt;setWorldTransform( QTransform() );</div>
<div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160; </div>
<div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;    <a class="code" href="class_qwt_painter.html#a2825f068a54e21e885235235daac3ec7">QwtPainter::drawImage</a>( painter, imageRect, image );</div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160; </div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;    painter-&gt;restore();</div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;}</div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160; </div>
<div class="line"><a name="l00778"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#ae89258a78b262ccaad43c4a2d5f7b5b4">  778</a></span>&#160;<a class="code" href="class_qwt_interval.html">QwtInterval</a> <a class="code" href="class_qwt_plot_raster_item.html#ae89258a78b262ccaad43c4a2d5f7b5b4">QwtPlotRasterItem::interval</a>(Qt::Axis axis)<span class="keyword"> const</span></div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;    Q_UNUSED( axis );</div>
<div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>();</div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;}</div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160; </div>
<div class="line"><a name="l00788"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#a0da9b86321855e580d0e21d2939d5391">  788</a></span>&#160;QRectF <a class="code" href="class_qwt_plot_raster_item.html#a0da9b86321855e580d0e21d2939d5391">QwtPlotRasterItem::boundingRect</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> intervalX = <a class="code" href="class_qwt_plot_raster_item.html#ae89258a78b262ccaad43c4a2d5f7b5b4">interval</a>( Qt::XAxis );</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> intervalY = <a class="code" href="class_qwt_plot_raster_item.html#ae89258a78b262ccaad43c4a2d5f7b5b4">interval</a>( Qt::YAxis );</div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160; </div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;    <span class="keywordflow">if</span> ( !intervalX.<a class="code" href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">isValid</a>() &amp;&amp; !intervalY.<a class="code" href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">isValid</a>() )</div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;        <span class="keywordflow">return</span> QRectF(); <span class="comment">// no bounding rect</span></div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160; </div>
<div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;    QRectF r;</div>
<div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160; </div>
<div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;    <span class="keywordflow">if</span> ( intervalX.<a class="code" href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">isValid</a>() )</div>
<div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;    {</div>
<div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;        r.setLeft( intervalX.<a class="code" href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">minValue</a>() );</div>
<div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;        r.setRight( intervalX.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>() );</div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;    }</div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;    {</div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;        <span class="keyword">const</span> qreal max = std::numeric_limits&lt; float &gt;::max();</div>
<div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160; </div>
<div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160;        r.setLeft( -0.5 * max );</div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;        r.setWidth( max );</div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;    }</div>
<div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160; </div>
<div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;    <span class="keywordflow">if</span> ( intervalY.<a class="code" href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">isValid</a>() )</div>
<div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;    {</div>
<div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160;        r.setTop( intervalY.<a class="code" href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">minValue</a>() );</div>
<div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;        r.setBottom( intervalY.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>() );</div>
<div class="line"><a name="l00815"></a><span class="lineno">  815</span>&#160;    }</div>
<div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;    {</div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;        <span class="keyword">const</span> qreal max = std::numeric_limits&lt; float &gt;::max();</div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160; </div>
<div class="line"><a name="l00820"></a><span class="lineno">  820</span>&#160;        r.setTop( -0.5 * max );</div>
<div class="line"><a name="l00821"></a><span class="lineno">  821</span>&#160;        r.setHeight( max );</div>
<div class="line"><a name="l00822"></a><span class="lineno">  822</span>&#160;    }</div>
<div class="line"><a name="l00823"></a><span class="lineno">  823</span>&#160; </div>
<div class="line"><a name="l00824"></a><span class="lineno">  824</span>&#160;    <span class="keywordflow">return</span> r.normalized();</div>
<div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;}</div>
<div class="line"><a name="l00826"></a><span class="lineno">  826</span>&#160; </div>
<div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160;QImage QwtPlotRasterItem::compose(</div>
<div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00829"></a><span class="lineno">  829</span>&#160;    <span class="keyword">const</span> QRectF&amp; imageArea, <span class="keyword">const</span> QRectF&amp; paintRect,</div>
<div class="line"><a name="l00830"></a><span class="lineno">  830</span>&#160;    <span class="keyword">const</span> QSize&amp; imageSize, <span class="keywordtype">bool</span> doCache)<span class="keyword"> const</span></div>
<div class="line"><a name="l00831"></a><span class="lineno">  831</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00832"></a><span class="lineno">  832</span>&#160;    QImage image;</div>
<div class="line"><a name="l00833"></a><span class="lineno">  833</span>&#160;    <span class="keywordflow">if</span> ( imageArea.isEmpty() || <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>.isEmpty() || imageSize.isEmpty() )</div>
<div class="line"><a name="l00834"></a><span class="lineno">  834</span>&#160;        <span class="keywordflow">return</span> image;</div>
<div class="line"><a name="l00835"></a><span class="lineno">  835</span>&#160; </div>
<div class="line"><a name="l00836"></a><span class="lineno">  836</span>&#160;    <span class="keywordflow">if</span> ( doCache )</div>
<div class="line"><a name="l00837"></a><span class="lineno">  837</span>&#160;    {</div>
<div class="line"><a name="l00838"></a><span class="lineno">  838</span>&#160;        <span class="keywordflow">if</span> ( !m_data-&gt;cache.image.isNull()</div>
<div class="line"><a name="l00839"></a><span class="lineno">  839</span>&#160;            &amp;&amp; m_data-&gt;cache.area == imageArea</div>
<div class="line"><a name="l00840"></a><span class="lineno">  840</span>&#160;            &amp;&amp; m_data-&gt;cache.size == <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>.size() )</div>
<div class="line"><a name="l00841"></a><span class="lineno">  841</span>&#160;        {</div>
<div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;            image = m_data-&gt;cache.image;</div>
<div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;        }</div>
<div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;    }</div>
<div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160; </div>
<div class="line"><a name="l00846"></a><span class="lineno">  846</span>&#160;    <span class="keywordflow">if</span> ( image.isNull() )</div>
<div class="line"><a name="l00847"></a><span class="lineno">  847</span>&#160;    {</div>
<div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160;        <span class="keywordtype">double</span> dx = 0.0;</div>
<div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160;        <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>.toRect().width() &gt; imageSize.width() )</div>
<div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160;            dx = imageArea.width() / imageSize.width();</div>
<div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160; </div>
<div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> xxMap =</div>
<div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;            <a class="code" href="class_qwt_plot_raster_item.html#ad64bb562d81ec0ccc7b4cfbf6bb9a133">imageMap</a>(Qt::Horizontal, xMap, imageArea, imageSize, dx);</div>
<div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160; </div>
<div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;        <span class="keywordtype">double</span> dy = 0.0;</div>
<div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160;        <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>.toRect().height() &gt; imageSize.height() )</div>
<div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160;            dy = imageArea.height() / imageSize.height();</div>
<div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160; </div>
<div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> yyMap =</div>
<div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160;            <a class="code" href="class_qwt_plot_raster_item.html#ad64bb562d81ec0ccc7b4cfbf6bb9a133">imageMap</a>(Qt::Vertical, yMap, imageArea, imageSize, dy);</div>
<div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160; </div>
<div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;        image = <a class="code" href="class_qwt_plot_raster_item.html#a1738b36c0e6e4073f3ad6629e7923f74">renderImage</a>( xxMap, yyMap, imageArea, imageSize );</div>
<div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160; </div>
<div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160;        <span class="keywordflow">if</span> ( doCache )</div>
<div class="line"><a name="l00865"></a><span class="lineno">  865</span>&#160;        {</div>
<div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;            m_data-&gt;cache.area = imageArea;</div>
<div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160;            m_data-&gt;cache.size = <a class="code" href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">paintRect</a>.size();</div>
<div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;            m_data-&gt;cache.image = image;</div>
<div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;        }</div>
<div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;    }</div>
<div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160; </div>
<div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;alpha &gt;= 0 &amp;&amp; m_data-&gt;alpha &lt; 255 )</div>
<div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;    {</div>
<div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;        QImage alphaImage( image.size(), QImage::Format_ARGB32 );</div>
<div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160; </div>
<div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;<span class="preprocessor">#if !defined( QT_NO_QFUTURE )</span></div>
<div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;        uint numThreads = <a class="code" href="class_qwt_plot_item.html#ae3651df9594cb48f8221f7b1cc7852ca">renderThreadCount</a>();</div>
<div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160; </div>
<div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;        <span class="keywordflow">if</span> ( numThreads &lt;= 0 )</div>
<div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;            numThreads = QThread::idealThreadCount();</div>
<div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160; </div>
<div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;        <span class="keywordflow">if</span> ( numThreads &lt;= 0 )</div>
<div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;            numThreads = 1;</div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160; </div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> numRows = image.height() / numThreads;</div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160; </div>
<div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160;        <a class="code" href="class_q_vector.html">QVector&lt; QFuture&lt; void &gt;</a> &gt; futures;</div>
<div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;        futures.reserve( numThreads - 1 );</div>
<div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160; </div>
<div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160;        <span class="keywordflow">for</span> ( uint i = 0; i &lt; numThreads; i++ )</div>
<div class="line"><a name="l00891"></a><span class="lineno">  891</span>&#160;        {</div>
<div class="line"><a name="l00892"></a><span class="lineno">  892</span>&#160;            QRect tile( 0, i * numRows, image.width(), numRows );</div>
<div class="line"><a name="l00893"></a><span class="lineno">  893</span>&#160;            <span class="keywordflow">if</span> ( i == numThreads - 1 )</div>
<div class="line"><a name="l00894"></a><span class="lineno">  894</span>&#160;            {</div>
<div class="line"><a name="l00895"></a><span class="lineno">  895</span>&#160;                tile.setHeight( image.height() - i * numRows );</div>
<div class="line"><a name="l00896"></a><span class="lineno">  896</span>&#160;                qwtToRgba( &amp;image, &amp;alphaImage, tile, m_data-&gt;alpha );</div>
<div class="line"><a name="l00897"></a><span class="lineno">  897</span>&#160;            }</div>
<div class="line"><a name="l00898"></a><span class="lineno">  898</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160;            {</div>
<div class="line"><a name="l00900"></a><span class="lineno">  900</span>&#160;                futures += QtConcurrent::run(</div>
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<div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160;            }</div>
<div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160;        }</div>
<div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; futures.size(); i++ )</div>
<div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160;            futures[i].waitForFinished();</div>
<div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160;        <span class="keyword">const</span> QRect tile( 0, 0, image.width(), image.height() );</div>
<div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160;        qwtToRgba( &amp;image, &amp;alphaImage, tile, m_data-&gt;alpha );</div>
<div class="line"><a name="l00909"></a><span class="lineno">  909</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00910"></a><span class="lineno">  910</span>&#160;        image = alphaImage;</div>
<div class="line"><a name="l00911"></a><span class="lineno">  911</span>&#160;    }</div>
<div class="line"><a name="l00912"></a><span class="lineno">  912</span>&#160; </div>
<div class="line"><a name="l00913"></a><span class="lineno">  913</span>&#160;    <span class="keywordflow">return</span> image;</div>
<div class="line"><a name="l00914"></a><span class="lineno">  914</span>&#160;}</div>
<div class="line"><a name="l00915"></a><span class="lineno">  915</span>&#160; </div>
<div class="line"><a name="l00927"></a><span class="lineno"><a class="line" href="class_qwt_plot_raster_item.html#ad64bb562d81ec0ccc7b4cfbf6bb9a133">  927</a></span>&#160;<a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> <a class="code" href="class_qwt_plot_raster_item.html#ad64bb562d81ec0ccc7b4cfbf6bb9a133">QwtPlotRasterItem::imageMap</a>(</div>
<div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;    Qt::Orientation orientation,</div>
<div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; map, <span class="keyword">const</span> QRectF&amp; area,</div>
<div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160;    <span class="keyword">const</span> QSize&amp; imageSize, <span class="keywordtype">double</span> pixelSize)<span class="keyword"> const</span></div>
<div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160;    <span class="keywordtype">double</span> p1, p2, s1, s2;</div>
<div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160; </div>
<div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160;    <span class="keywordflow">if</span> ( orientation == Qt::Horizontal )</div>
<div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160;    {</div>
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<div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;        p2 = imageSize.width();</div>
<div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160;        s1 = area.left();</div>
<div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;        s2 = area.right();</div>
<div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160;    }</div>
<div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;    {</div>
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<div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160;        p2 = imageSize.height();</div>
<div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;        s1 = area.top();</div>
<div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;        s2 = area.bottom();</div>
<div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160;    }</div>
<div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160; </div>
<div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;    <span class="keywordflow">if</span> ( pixelSize &gt; 0.0 || p2 == 1.0 )</div>
<div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160;    {</div>
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<div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160;            off = -off;</div>
<div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160; </div>
<div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160;        s1 += off;</div>
<div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160;        s2 += off;</div>
<div class="line"><a name="l00957"></a><span class="lineno">  957</span>&#160;    }</div>
<div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;    <span class="keywordflow">else</span></div>
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<div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160; </div>
<div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160;    <span class="keywordflow">if</span> ( map.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>() &amp;&amp; ( s1 &lt; s2 ) )</div>
<div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;        qSwap( s1, s2 );</div>
<div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160; </div>
<div class="line"><a name="l00966"></a><span class="lineno">  966</span>&#160;    <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> newMap = map;</div>
<div class="line"><a name="l00967"></a><span class="lineno">  967</span>&#160;    newMap.<a class="code" href="class_qwt_scale_map.html#a994240e446986112f196a65657dc9755">setPaintInterval</a>( p1, p2 );</div>
<div class="line"><a name="l00968"></a><span class="lineno">  968</span>&#160;    newMap.<a class="code" href="class_qwt_scale_map.html#aaa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>( s1, s2 );</div>
<div class="line"><a name="l00969"></a><span class="lineno">  969</span>&#160; </div>
<div class="line"><a name="l00970"></a><span class="lineno">  970</span>&#160;    <span class="keywordflow">return</span> newMap;</div>
<div class="line"><a name="l00971"></a><span class="lineno">  971</span>&#160;}</div>
<div class="ttc" id="aclass_q_vector_html"><div class="ttname"><a href="class_q_vector.html">QVector</a></div><div class="ttdef"><b>Definition:</b> <a href="qwt__clipper_8h_source.html#l00023">qwt_clipper.h:23</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html"><div class="ttname"><a href="class_qwt_interval.html">QwtInterval</a></div><div class="ttdoc">A class representing an interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00022">qwt_interval.h:23</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a0df143a36d76a677976d82987cab8a06"><div class="ttname"><a href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">QwtInterval::minValue</a></div><div class="ttdeci">double minValue() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00192">qwt_interval.h:192</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a3a4b4e49495108c660fc07a62af7ac54a70e70e65956ae319e507bc38b792c434"><div class="ttname"><a href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54a70e70e65956ae319e507bc38b792c434">QwtInterval::ExcludeMaximum</a></div><div class="ttdeci">@ ExcludeMaximum</div><div class="ttdoc">Max value is not included in the interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00038">qwt_interval.h:38</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a3a4b4e49495108c660fc07a62af7ac54aa7fde04c41d882187bb13f0104da7240"><div class="ttname"><a href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54aa7fde04c41d882187bb13f0104da7240">QwtInterval::ExcludeMinimum</a></div><div class="ttdeci">@ ExcludeMinimum</div><div class="ttdoc">Min value is not included in the interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00035">qwt_interval.h:35</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a44820fa5d6e6cefa59dc31ea0d522d61"><div class="ttname"><a href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">QwtInterval::maxValue</a></div><div class="ttdeci">double maxValue() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00198">qwt_interval.h:198</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_ac7378d58eb684a9befde1cb6d6e88b45"><div class="ttname"><a href="class_qwt_interval.html#ac7378d58eb684a9befde1cb6d6e88b45">QwtInterval::borderFlags</a></div><div class="ttdeci">BorderFlags borderFlags() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00166">qwt_interval.h:166</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_ad742235a737d4d0b12cba1cab2df55f3"><div class="ttname"><a href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">QwtInterval::isValid</a></div><div class="ttdeci">bool isValid() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00210">qwt_interval.h:210</a></div></div>
<div class="ttc" id="aclass_qwt_painter_html_a2825f068a54e21e885235235daac3ec7"><div class="ttname"><a href="class_qwt_painter.html#a2825f068a54e21e885235235daac3ec7">QwtPainter::drawImage</a></div><div class="ttdeci">static void drawImage(QPainter *, const QRectF &amp;, const QImage &amp;)</div><div class="ttdoc">Wrapper for QPainter::drawImage()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__painter_8cpp_source.html#l00773">qwt_painter.cpp:773</a></div></div>
<div class="ttc" id="aclass_qwt_painter_html_ae9af230df7bb8d40b802d4f3205a8631"><div class="ttname"><a href="class_qwt_painter.html#ae9af230df7bb8d40b802d4f3205a8631">QwtPainter::roundingAlignment</a></div><div class="ttdeci">static bool roundingAlignment()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__painter_8h_source.html#l00183">qwt_painter.h:183</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html"><div class="ttname"><a href="class_qwt_plot_item.html">QwtPlotItem</a></div><div class="ttdoc">Base class for items on the plot canvas.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8h_source.html#l00066">qwt_plot_item.h:67</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_a08deefbedf8742f4877841b2dfd85822"><div class="ttname"><a href="class_qwt_plot_item.html#a08deefbedf8742f4877841b2dfd85822">QwtPlotItem::paintRect</a></div><div class="ttdeci">QRectF paintRect(const QwtScaleMap &amp;, const QwtScaleMap &amp;) const</div><div class="ttdoc">Calculate the bounding paint rectangle of 2 maps.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00720">qwt_plot_item.cpp:720</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_a57d90e4146133b59d589c71b3a643e82"><div class="ttname"><a href="class_qwt_plot_item.html#a57d90e4146133b59d589c71b3a643e82">QwtPlotItem::setZ</a></div><div class="ttdeci">void setZ(double z)</div><div class="ttdoc">Set the z value.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00165">qwt_plot_item.cpp:165</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_a5a335be8ff488809a2cf7f4b734ad1b6"><div class="ttname"><a href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">QwtPlotItem::setItemAttribute</a></div><div class="ttdeci">void setItemAttribute(ItemAttribute, bool on=true)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00228">qwt_plot_item.cpp:228</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_ad956fdbce5b0721abccce6d09fe4d5ce"><div class="ttname"><a href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">QwtPlotItem::itemChanged</a></div><div class="ttdeci">virtual void itemChanged()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00481">qwt_plot_item.cpp:481</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176"><div class="ttname"><a href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176">QwtPlotItem::Legend</a></div><div class="ttdeci">@ Legend</div><div class="ttdoc">The item is represented on the legend.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8h_source.html#l00150">qwt_plot_item.h:150</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48"><div class="ttname"><a href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48">QwtPlotItem::AutoScale</a></div><div class="ttdeci">@ AutoScale</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8h_source.html#l00157">qwt_plot_item.h:157</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_ae3651df9594cb48f8221f7b1cc7852ca"><div class="ttname"><a href="class_qwt_plot_item.html#ae3651df9594cb48f8221f7b1cc7852ca">QwtPlotItem::renderThreadCount</a></div><div class="ttdeci">uint renderThreadCount() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00360">qwt_plot_item.cpp:360</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html"><div class="ttname"><a href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a></div><div class="ttdoc">A class, which displays raster data.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8h_source.html#l00037">qwt_plot_rasteritem.h:38</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a0244b24502abe26185b70b7ee6a4905c"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a0244b24502abe26185b70b7ee6a4905c">QwtPlotRasterItem::testPaintAttribute</a></div><div class="ttdeci">bool testPaintAttribute(PaintAttribute) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00482">qwt_plot_rasteritem.cpp:482</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a0d93dc1cd50a43bc10bc1b1bfd457a4c"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a0d93dc1cd50a43bc10bc1b1bfd457a4c">QwtPlotRasterItem::draw</a></div><div class="ttdeci">virtual void draw(QPainter *, const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QRectF &amp;canvasRect) const override</div><div class="ttdoc">Draw the raster data.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00614">qwt_plot_rasteritem.cpp:614</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a0da9b86321855e580d0e21d2939d5391"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a0da9b86321855e580d0e21d2939d5391">QwtPlotRasterItem::boundingRect</a></div><div class="ttdeci">virtual QRectF boundingRect() const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00788">qwt_plot_rasteritem.cpp:788</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a14f2ab8ec0994384e6269f869c352273"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a14f2ab8ec0994384e6269f869c352273">QwtPlotRasterItem::setAlpha</a></div><div class="ttdeci">void setAlpha(int alpha)</div><div class="ttdoc">Set an alpha value for the raster data.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00510">qwt_plot_rasteritem.cpp:510</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a1738b36c0e6e4073f3ad6629e7923f74"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a1738b36c0e6e4073f3ad6629e7923f74">QwtPlotRasterItem::renderImage</a></div><div class="ttdeci">virtual QImage renderImage(const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QRectF &amp;area, const QSize &amp;imageSize) const =0</div><div class="ttdoc">Render an image.</div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a2715233827c346ab15504dc75d6e9714"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a2715233827c346ab15504dc75d6e9714">QwtPlotRasterItem::~QwtPlotRasterItem</a></div><div class="ttdeci">virtual ~QwtPlotRasterItem()</div><div class="ttdoc">Destructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00448">qwt_plot_rasteritem.cpp:448</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a31f74199f7e333c2683b0f18289e4c7f"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a31f74199f7e333c2683b0f18289e4c7f">QwtPlotRasterItem::setCachePolicy</a></div><div class="ttdeci">void setCachePolicy(CachePolicy)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00543">qwt_plot_rasteritem.cpp:543</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a547ce4d8d031b230226cfbd509ef65b5"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a547ce4d8d031b230226cfbd509ef65b5">QwtPlotRasterItem::invalidateCache</a></div><div class="ttdeci">void invalidateCache()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00568">qwt_plot_rasteritem.cpp:568</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a6a8ee7f74861bf13335044810174bd3c"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a6a8ee7f74861bf13335044810174bd3c">QwtPlotRasterItem::alpha</a></div><div class="ttdeci">int alpha() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00530">qwt_plot_rasteritem.cpp:530</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a70d6b94821e5eafb29b1f045d1f3a2e6"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a70d6b94821e5eafb29b1f045d1f3a2e6">QwtPlotRasterItem::setPaintAttribute</a></div><div class="ttdeci">void setPaintAttribute(PaintAttribute, bool on=true)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00470">qwt_plot_rasteritem.cpp:470</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a71cc9ee02852dac4e5cf418e37563c9d"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a71cc9ee02852dac4e5cf418e37563c9d">QwtPlotRasterItem::PaintAttributes</a></div><div class="ttdeci">QFlags&lt; PaintAttribute &gt; PaintAttributes</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8h_source.html#l00083">qwt_plot_rasteritem.h:83</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a75ac68ea258b8612e8a1893e845394ee"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">QwtPlotRasterItem::PaintAttribute</a></div><div class="ttdeci">PaintAttribute</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8h_source.html#l00066">qwt_plot_rasteritem.h:67</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a75ac68ea258b8612e8a1893e845394eea77b139d4d7327465408fe06ec98dbc0d"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394eea77b139d4d7327465408fe06ec98dbc0d">QwtPlotRasterItem::PaintInDeviceResolution</a></div><div class="ttdeci">@ PaintInDeviceResolution</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8h_source.html#l00081">qwt_plot_rasteritem.h:80</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a879bb4bc04be084022e9cc5abab748f3"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a879bb4bc04be084022e9cc5abab748f3">QwtPlotRasterItem::pixelHint</a></div><div class="ttdeci">virtual QRectF pixelHint(const QRectF &amp;) const</div><div class="ttdoc">Pixel hint.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00601">qwt_plot_rasteritem.cpp:601</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a94929fc4c31c3dab75ee5adcac2d57b0"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">QwtPlotRasterItem::CachePolicy</a></div><div class="ttdeci">CachePolicy</div><div class="ttdoc">Cache policy The default policy is NoCache.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8h_source.html#l00044">qwt_plot_rasteritem.h:45</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a94929fc4c31c3dab75ee5adcac2d57b0a3bfb74bebbfe1ccabe1d6654fee7c56d"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0a3bfb74bebbfe1ccabe1d6654fee7c56d">QwtPlotRasterItem::PaintCache</a></div><div class="ttdeci">@ PaintCache</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8h_source.html#l00060">qwt_plot_rasteritem.h:59</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_a94929fc4c31c3dab75ee5adcac2d57b0a758ccf247c4ae50d4ffd090ef3a6058e"><div class="ttname"><a href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0a758ccf247c4ae50d4ffd090ef3a6058e">QwtPlotRasterItem::NoCache</a></div><div class="ttdeci">@ NoCache</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8h_source.html#l00049">qwt_plot_rasteritem.h:49</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_ac537e137ad0d594a3276b0f76202a626"><div class="ttname"><a href="class_qwt_plot_raster_item.html#ac537e137ad0d594a3276b0f76202a626">QwtPlotRasterItem::QwtPlotRasterItem</a></div><div class="ttdeci">QwtPlotRasterItem(const QString &amp;title=QString())</div><div class="ttdoc">Constructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00434">qwt_plot_rasteritem.cpp:434</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_ad64bb562d81ec0ccc7b4cfbf6bb9a133"><div class="ttname"><a href="class_qwt_plot_raster_item.html#ad64bb562d81ec0ccc7b4cfbf6bb9a133">QwtPlotRasterItem::imageMap</a></div><div class="ttdeci">virtual QwtScaleMap imageMap(Qt::Orientation, const QwtScaleMap &amp;map, const QRectF &amp;area, const QSize &amp;imageSize, double pixelSize) const</div><div class="ttdoc">Calculate a scale map for painting to an image.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00927">qwt_plot_rasteritem.cpp:927</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_ae89258a78b262ccaad43c4a2d5f7b5b4"><div class="ttname"><a href="class_qwt_plot_raster_item.html#ae89258a78b262ccaad43c4a2d5f7b5b4">QwtPlotRasterItem::interval</a></div><div class="ttdeci">virtual QwtInterval interval(Qt::Axis) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00778">qwt_plot_rasteritem.cpp:778</a></div></div>
<div class="ttc" id="aclass_qwt_plot_raster_item_html_aec74de65bf6b566afd52db6dc4c67c46"><div class="ttname"><a href="class_qwt_plot_raster_item.html#aec74de65bf6b566afd52db6dc4c67c46">QwtPlotRasterItem::cachePolicy</a></div><div class="ttdeci">CachePolicy cachePolicy() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__rasteritem_8cpp_source.html#l00559">qwt_plot_rasteritem.cpp:559</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html"><div class="ttname"><a href="class_qwt_scale_map.html">QwtScaleMap</a></div><div class="ttdoc">A scale map.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00026">qwt_scale_map.h:27</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a283100be40b08db7df078b8a0ee1d19c"><div class="ttname"><a href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">QwtScaleMap::isInverting</a></div><div class="ttdeci">bool isInverting() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00164">qwt_scale_map.h:164</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a4d03a9fea3bd9b66a0b882b8b1a58f4b"><div class="ttname"><a href="class_qwt_scale_map.html#a4d03a9fea3bd9b66a0b882b8b1a58f4b">QwtScaleMap::p1</a></div><div class="ttdeci">double p1() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00099">qwt_scale_map.h:99</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a504f1627e0e02ddac03d2ce46507b865"><div class="ttname"><a href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">QwtScaleMap::transform</a></div><div class="ttdeci">double transform(double s) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00137">qwt_scale_map.h:137</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a994240e446986112f196a65657dc9755"><div class="ttname"><a href="class_qwt_scale_map.html#a994240e446986112f196a65657dc9755">QwtScaleMap::setPaintInterval</a></div><div class="ttdeci">void setPaintInterval(double p1, double p2)</div><div class="ttdoc">Specify the borders of the paint device interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8cpp_source.html#l00119">qwt_scale_map.cpp:119</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_aaa33bc8e1aed7aa17d345053194e7094"><div class="ttname"><a href="class_qwt_scale_map.html#aaa33bc8e1aed7aa17d345053194e7094">QwtScaleMap::setScaleInterval</a></div><div class="ttdeci">void setScaleInterval(double s1, double s2)</div><div class="ttdoc">Specify the borders of the scale interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8cpp_source.html#l00100">qwt_scale_map.cpp:100</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_ab1ee6d62addf3f9cf091d425be9ac642"><div class="ttname"><a href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642">QwtScaleMap::invTransform</a></div><div class="ttdeci">double invTransform(double p) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00154">qwt_scale_map.h:154</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_acd78b70fae83854a148fa3d08b13c261"><div class="ttname"><a href="class_qwt_scale_map.html#acd78b70fae83854a148fa3d08b13c261">QwtScaleMap::p2</a></div><div class="ttdeci">double p2() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00107">qwt_scale_map.h:107</a></div></div>
<div class="ttc" id="aclass_qwt_text_html"><div class="ttname"><a href="class_qwt_text.html">QwtText</a></div><div class="ttdoc">A class representing a text.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text_8h_source.html#l00051">qwt_text.h:52</a></div></div>
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